Retentate plate



FIG. 1 is a front view of the retentate plate in a first aspect of thepresent invention.

FIG. 2 is a rear view thereof.

FIG. 3 is a top view thereof. The bottom view on the opposite sidethereof is a mirror image of the top view.

FIG. 4 is a right side view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a front upper side perspective view thereof; and,

FIG. 7 is a rear lower side perspective view thereof.

The retentate plate of the present invention allows retentate to beconveniently collected at the end of a single-pass tangential flowfiltration (TFF) process. Optional handles allow for ease of set-up ofthe assembly but can be removed to allow for use in a multilevelassembly where the handles would interfere with the next level. Fluidexiting the assembly is sufficiently concentrated after a single passthrough the series of cassettes that retentate recycle is not necessary.

The broken lines in the Figures are for illustrative purposes only, andform no part of the claimed design.

CLAIM The ornamental design for a retentate plate, as shown anddescribed.